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Hollywood actor Leonardo DiCaprio has stepped up the ice bucket challenge by donating a massive $100,000 to the ALS Association.

The Titanic star completed the feat in Canada, where he is currently filming a documentary with director Darren Aronofsky about the effects of oil sands drilling.

DiCaprio gathered with the documentary crew to take on the challenge, and pass it on to some of the world's leading petroleum and oil producers, while the actor also targeted Canadian Prime Minister Stephen Harper.

In the video, the actor says, "I happen to be here in Alberta learning about the Canadian tar sands, its impact on our climate and the way they affect the lands, water and health of the indigenous communities that live here. We're here to accept the ALS challenge and I'm happy to donate to this very worth cause."

The star was then drenched in a bucket of icy water to complete the challenge, which is raising money and awareness for ALS, also known as Lou Gehrig's disease and motor neurone disease.

Other stars to have taken on the stunt include fellow Hollywood actors Matt Damon, Ben Affleck, Jennifer Aniston and Gwyneth Paltrow.